Patent US2492296A successfully refreshed from Google Patents.
Patent US669890A successfully refreshed from Google Patents.
US669890A
Expired / Lapsed
US
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Carrier for tubular despatch systems.
Assignee: Individual
•
Filing: 1900-08-10
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Granted: 1901-03-12
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Expires: 1920-08-10
Abstract
No abstract record available.
Inventors
- 👤 Washington A H Bogardus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:46
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1904-03-11 | 1904-09-10 | 1905-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-03-11 | 1908-09-10 | 1909-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-03-11 | 1912-09-10 | 1913-03-12 | $7700.00 | Window Closed / Lapsed |